Jeroen Steehouwer began his comics career in Sjors en Sjimmie magazine with series like 'Fanteasy' (scripts by Fred Julsing, 1987-88) and 'Roy Bellevue' (scripts by Hanco Kolk, 1989). In 1990, he was the co-founder of Funny Farm, which published the magazine Razzafrazz. For this magazine, Jeroen made several independent stories, including 'Ereschuld', with a script by M. Daalder and P. van Dongen.
Steehouwer runs his own Hildebrand Studio, through which he has self-published Hildebrand Comix. He illustrated stories with 'Winnie the Pooh' and 'Little Hiawatha' for the Dutch Disney production in the early 1990s, and in 1994, he started his gag strip 'Katja' in Suske en Wiske Weekblad. In that same magazine, he made the adventure series 'Pelle' with Frans Leenheer and scriptwriter Willem Ritstier between 1998 and 2001. In 1995-97, he made his first autobiographical comics for Zone 5300. He subsequently created the longer story 'WOK' for the same magazine (1997-98), as well as a series of stories based on the work of Tolstoi, called 'Waarvan Leeft De Mens'.
In 2006, the first album of his comics autobiography, called 'De Uitweg - Jeugdjaren', was published by Syndikaat. Steehouwer is also active in the advertising field. He has done illustrations for publishers like Malmberg and Wolters Noordhoff and has created the gag strip 'Ad Nobel' for Center Nieuws, the internal magazine of Akzo Nobel. In 2012 he started the comic series 'Hillary King' with Ger Apeldoorn for Eppo magazine.